CN218909592U

CN218909592U - Steel box girder hoisting device for bridge construction

Info

Publication number: CN218909592U
Application number: CN202223049870.7U
Authority: CN
Inventors: 赵强; 王晓冬; 王迎; 解栋邓; 耿祥龙; 刘光辉
Original assignee: Weifang Changda Construction Group Ltd
Current assignee: Weifang Changda Construction Group Ltd
Priority date: 2022-11-17
Filing date: 2022-11-17
Publication date: 2023-04-25
Anticipated expiration: 2032-11-17

Abstract

The utility model relates to the technical field of bridge construction, in particular to a steel box girder hoisting device for bridge construction, which comprises a steel box girder main body, wherein two groups of hoisting structures are arranged at the upper end of the steel box girder main body, each hoisting structure comprises a loop bar, a left connecting rod and a right connecting rod are respectively arranged in the loop bar, one ends of the left connecting rod and the right connecting rod, which are positioned outside the loop bar, are respectively connected with a hook plate, a gear is arranged in the loop bar between the left connecting rod and the right connecting rod, the center of the gear penetrates through a connecting shaft, and the steel box girder hoisting device for bridge construction is composed of hoisting structures and limiting assemblies.

Description

Steel box girder hoisting device for bridge construction

Technical Field

The utility model relates to the technical field of bridge construction, in particular to a steel box girder hoisting device for bridge construction.

Background

The steel box girder is also called a steel plate box girder, and is a common structural form of a large-span bridge; is generally used on bridges with larger spans; due to the large weight and volume of the steel box girder, the steel box girder is usually hoisted by a crane during installation and construction.

In the existing hoisting process of the steel box girder, the hoisting ring is welded at the upper end of the steel box girder, the steel cable is fixed on the hoisting ring to hoist the steel box girder, the hoisting point is subjected to horizontal component force during hoisting, the welding hoisting ring of the bridge deck of the steel box girder is likely to be convexly deformed, the hoisting ring is required to be cut in the later period, the top plate of the steel box girder can be damaged in the cutting process, and the comprehensive construction cost is high.

Therefore, a steel box girder hoisting device for bridge construction is needed to improve the problems.

Disclosure of Invention

The utility model aims to provide a steel box girder hoisting device for bridge construction, which aims to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a steel case roof beam hoist device for bridge construction, includes the steel case roof beam main part, two sets of hoisting structure are installed to the upper end of steel case roof beam main part, hoisting structure includes the loop bar, left connecting rod and right connecting rod are installed respectively to the inside of loop bar, left connecting rod and right connecting rod are located the outside one end of loop bar and all are connected with the hook plate, be located the internally mounted of loop bar between left connecting rod and the right connecting rod has the gear, the center of gear runs through there is the connecting axle, left connecting rod and right connecting rod all are connected with the tooth piece to one side surface of gear, the upper end of loop bar is connected with rings, the bolt is installed to the upper end of hook plate, the upper end of connecting axle is connected with spacing subassembly;

the limiting component comprises a limiting block, the upper end of the limiting block is connected with a threaded column, a sleeve plate is sleeved at the center position of the sleeve rod outside the threaded column, an embedded groove is formed in the joint of the lower end face of the sleeve plate and the limiting block, and a nut is mounted on the threaded column at the upper end of the sleeve plate.

As the preferable scheme of the utility model, the connecting mode of the loop bar, the left connecting rod and the right connecting rod is movable sleeving, and the gear is rotationally connected with the loop bar through the connecting shaft.

As a preferable scheme of the utility model, the gear is respectively meshed and connected with the left connecting rod and the right connecting rod through the tooth blocks, and the bolt is connected with the hook plate in a threaded manner.

As a preferable scheme of the utility model, the hook plate is movably connected with the steel box girder main body, and the hook plate is respectively in an integrated structure with the left connecting rod and the right connecting rod.

As the preferable scheme of the utility model, the connection mode of the limiting block, the connecting shaft and the threaded column is fixed welding, and the sleeve plate is movably sleeved with the limiting block through the embedded groove.

As the preferable scheme of the utility model, the cross sections of the limiting block and the embedded groove are hexagonal, and the connection mode between the nut and the threaded column is threaded connection.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the steel box girder hoisting device for bridge construction is composed of the hoisting structure and the limiting component, when the hook plate in the hoisting structure hooks the edge of the top plate of the steel box girder main body, the distances from the two groups of hoisting rings on the loop bar to the center of the steel box girder main body are equal, the steel box girder main body can be effectively prevented from being skewed when the steel box girder main body is hoisted through the two groups of hoisting structures, welding tools are not needed, the disassembly and the assembly are convenient, the force distribution of the hoisting structure on the steel box girder main body is uniform, the protruding deformation of the top plate of the steel box girder main body can be prevented, the limiting component is used for limiting the gear, and the stability of the hoisting structure when the steel box girder main body is hoisted can be enhanced.

Drawings

Fig. 1 is a schematic diagram of the connection of the hoisting structure of the present utility model with a steel box girder main body.

In the figure: 1. a steel box girder main body; 2. a hoisting structure; 201. a loop bar; 202. a left connecting rod; 203. a right connecting rod; 204. a hook plate; 205. a gear; 206. a connecting shaft; 207. tooth blocks; 208. a hanging ring; 209. a bolt; 3. a limit component; 301. a limiting block; 302. a threaded column; 303. a sleeve plate; 304. an embedding groove; 305. and (3) a nut.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any creative effort based on the embodiments in the present utility model are all within the protection scope of the present utility model.

In order to facilitate an understanding of the utility model, several embodiments of the utility model will be described more fully hereinafter with reference to the accompanying drawings, in which, however, the utility model may be embodied in many different forms and is not limited to the embodiments described herein, but instead is provided for the purpose of providing a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "mounted" to another element, it can be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to another element, it may be directly connected to the other element or intervening elements may also be present, the terms "vertical", "horizontal", "left", "right" and the like are used herein for the purpose of illustration only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs, and the terms used herein in this description of the utility model are for the purpose of describing particular embodiments only and are not intended to be limiting of the utility model, with the term "and/or" as used herein including one or more of the relevant listed items and all combinations thereof.

Referring to fig. 1, the present utility model provides a technical solution:

the steel box girder hoisting device for bridge construction comprises a steel box girder main body 1, wherein two groups of hoisting structures 2 are arranged at the upper end of the steel box girder main body 1, each hoisting structure 2 comprises a loop bar 201, a left connecting rod 202 and a right connecting rod 203 are respectively arranged in the loop bar 201, a hook plate 204 is respectively connected to one end of each of the left connecting rod 202 and the right connecting rod 203, a gear 205 is arranged in the loop bar 201 between the left connecting rod 202 and the right connecting rod 203, a connecting shaft 206 penetrates through the center of the gear 205, a tooth block 207 is respectively connected to the outer surface of one side of each of the left connecting rod 202 and the right connecting rod 203, which faces the gear 205, a hanging ring 208 is connected to the upper end of the loop bar 201, a bolt 209 is arranged at the upper end of the hook plate 204, and a limiting component 3 is connected to the upper end of the connecting shaft 206; the connecting mode of the sleeve rod 201, the left connecting rod 202 and the right connecting rod 203 is movable sleeving, the gear 205 is rotationally connected with the sleeve rod 201 through the connecting shaft 206, and the connecting shaft 206 is convenient for the gear 205 to be connected with the sleeve rod 201; the gear 205 is respectively meshed with the left connecting rod 202 and the right connecting rod 203 through the tooth block 207, the bolt 209 is in threaded connection with the hook plate 204, and the hook plate 204 and the top plate of the steel box girder main body 1 can be locked after the bolt 209 is screwed; the hook plate 204 is movably connected with the steel box girder main body 1, and the hook plate 204, the left connecting rod 202 and the right connecting rod 203 are respectively in an integrated structure; the sleeve rod 201 is placed at the center line position of the steel box girder main body 1, the left connecting rod 202 or the right connecting rod 203 is pulled randomly, the left connecting rod 202 and the right connecting rod 203 simultaneously extend out of the sleeve rod 201 or retract into the sleeve rod 201, after the hook plate 204 hooks the edge of the top plate of the steel box girder main body 1, the center distance from two groups of hanging rings 208 on the sleeve rod 201 to the steel box girder main body 1 can be ensured to be equal, the steel box girder main body 1 can be effectively prevented from being skewed when the steel box girder main body 1 is hoisted through the two groups of hoisting structures 2, a welding tool is not needed, the disassembly and assembly are convenient, the force distribution of the hoisting structures 2 acting on the steel box girder main body 1 is uniform, and the protruding deformation of the top plate of the steel box girder main body 1 can be prevented.

In this embodiment, referring to fig. 1, the limiting component 3 includes a limiting block 301, a threaded post 302 is connected to the upper end of the limiting block 301, a sleeve plate 303 is sleeved on the outer side of the threaded post 302 at the central position of the sleeve rod 201, an embedded groove 304 is formed at the connection position between the lower end surface of the sleeve plate 303 and the limiting block 301, and a nut 305 is installed on the threaded post 302 at the upper end of the sleeve plate 303; the limiting block 301 is fixedly welded with the connecting shaft 206 and the threaded column 302, the sleeve plate 303 is movably sleeved with the limiting block 301 through the embedded groove 304, and the limiting block 301 can drive the gear 205 to rotate; the cross sections of the limiting block 301 and the embedded groove 304 are hexagonal, and the nut 305 is connected with the threaded column 302 in a threaded manner; the socket 303 is sleeved on the threaded post 302, the limiting block 301 is embedded into the socket 303, and the nut 305 is mounted on the threaded post 302 to lock the socket 303, so that the gear 205 can be prevented from rotating.

The working flow of the utility model is as follows: when the steel box girder hoisting device for bridge construction designed by the scheme is used, the loop bar 201 is firstly placed at the center line position of the steel box girder main body 1, under the condition that the connection mode of the loop bar 201 and the left connecting rod 202 and the right connecting rod 203 is movably sleeved, the left connecting rod 202 or the right connecting rod 203 is arbitrarily pulled, under the condition that the gear 205 is respectively meshed and connected with the left connecting rod 202 and the right connecting rod 203 through the tooth block 207, the left connecting rod 202 and the right connecting rod 203 simultaneously extend out of the loop bar 201 or retract into the loop bar 201, after the hook plate 204 hooks the top plate edge of the steel box girder main body 1, the center distance from two groups of hanging rings 208 on the loop bar 201 to the steel box girder main body 1 is equal, the steel box girder main body 1 can be effectively prevented from being askew under the condition that the two groups of hanging structures 2 are used for hanging the steel box girder main body 1, the disassembly and assembly are convenient, the force distribution of the hanging structures 2 on the steel box girder main body 1 is uniform, the top plate protrusion deformation of the steel box girder main body 1 can be prevented, the hook plate 204 hooks the top plate 1 edge of the steel box girder main body, the two groups of hanging rings 208 are embedded into the limit block 302 through the thread 302, and the limit block 302 is prevented from being embedded into the thread groove 302, and the limit block 303 is prevented from being screwed into the thread 303, and the limit block 303 is finally screwed into the thread 302 in the thread 302, and the thread is prevented from being embedded into the limit block 303, and the thread groove 302 is connected with the limit block 302, and the limit block is screwed into the thread, and the nut 303 is screwed into the nut screw, and the nut, and the screw nut is screwed.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations may be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a steel case roof beam hoist device for bridge construction, includes steel case roof beam main part (1), its characterized in that: two sets of hoisting structures (2) are installed at the upper end of the steel box girder main body (1), each hoisting structure (2) comprises a loop bar (201), a left connecting rod (202) and a right connecting rod (203) are respectively installed inside each loop bar (201), a hook plate (204) is connected to one end of each left connecting rod (202) and one end of each right connecting rod (203) outside each loop bar (201), a gear (205) is installed inside each loop bar (201) between each left connecting rod (202) and each right connecting rod (203), a connecting shaft (206) penetrates through the center of each gear (205), tooth blocks (207) are connected to one outer surface of each left connecting rod (202) and one outer surface of each right connecting rod (203) facing each gear (205), hanging rings (208) are connected to the upper ends of the loop bars (201), bolts (209) are installed at the upper ends of the hook plates (204), and limit components (3) are connected to the upper ends of the connecting shafts (206).

Limiting component (3) are including stopper (301), the upper end of stopper (301) is connected with screw thread post (302), the outside of screw thread post (302) is located the central point department cover of loop bar (201) and has set up sleeve board (303), embedded groove (304) have been seted up to the junction of terminal surface and stopper (301) under sleeve board (303), install nut (305) on the upper end of sleeve board (303) is located screw thread post (302).

2. The steel box girder hoisting device for bridge construction according to claim 1, wherein: the connecting modes of the loop bar (201) and the left connecting rod (202) and the right connecting rod (203) are movably sleeved, and the gear (205) is rotationally connected with the loop bar (201) through a connecting shaft (206).

3. The steel box girder hoisting device for bridge construction according to claim 1, wherein: the gear (205) is respectively meshed with the left connecting rod (202) and the right connecting rod (203) through the tooth block (207), and the bolt (209) is connected with the hook plate (204) in a threaded mode.

4. The steel box girder hoisting device for bridge construction according to claim 1, wherein: the hook plate (204) is movably connected with the steel box girder main body (1), and the hook plate (204) is respectively integrated with the left connecting rod (202) and the right connecting rod (203).

5. The steel box girder hoisting device for bridge construction according to claim 1, wherein: the limiting block (301) is fixedly welded with the connecting shaft (206) and the threaded column (302), and the sleeve plate (303) is movably sleeved with the limiting block (301) through the embedded groove (304).

6. The steel box girder hoisting device for bridge construction according to claim 1, wherein: the cross sections of the limiting block (301) and the embedded groove (304) are hexagonal, and the nut (305) is connected with the threaded column (302) in a threaded mode.